BE801207R - DEVICE FOR STUDYING SMALL GAPS BETWEEN AT LEAST TWO OBJECTS - Google Patents

DEVICE FOR STUDYING SMALL GAPS BETWEEN AT LEAST TWO OBJECTS

Info

Publication number: BE801207R
Authority: BE; Belgium
Prior art keywords: objects; small gaps; studying small; studying; gaps
Prior art date: 1973-04-10

Application number

BE1005179A

Other languages

French (fr)

Original Assignee

D Comp Gen

Electricite

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1973-04-10

Filing date

1973-06-21

Publication date

1973-12-21

1973-06-21 Application filed by D Comp Gen, Electricite filed Critical D Comp Gen

1973-12-21 Application granted granted Critical

1973-12-21 Publication of BE801207R publication Critical patent/BE801207R/en

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/02—Interferometers
- G01B9/021—Interferometers using holographic techniques

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Length Measuring Devices By Optical Means (AREA)
Holo Graphy (AREA)
Instruments For Measurement Of Length By Optical Means (AREA)

BE1005179A 1973-04-10 1973-06-21 DEVICE FOR STUDYING SMALL GAPS BETWEEN AT LEAST TWO OBJECTS BE801207R (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US34989173A	1973-04-10	1973-04-10

Publications (1)

Publication Number	Publication Date
BE801207R true BE801207R (en)	1973-12-21

Family

ID=23374402

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE1005179A BE801207R (en)	1973-04-10	1973-06-21	DEVICE FOR STUDYING SMALL GAPS BETWEEN AT LEAST TWO OBJECTS

Country Status (8)

Country	Link
JP (2)	JPS49131457A (en)
BE (1)	BE801207R (en)
CA (1)	CA981899A (en)
CH (1)	CH563011A5 (en)
DE (1)	DE2341764A1 (en)
GB (1)	GB1422180A (en)
IT (1)	IT1046260B (en)
NL (1)	NL7311772A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0024167A3 (en) *	1979-08-07	1982-08-04	Rolls-Royce Plc	Method and apparatus for speckle pattern interferometric determination of point displacements
GB2239716B (en) *	1989-12-22	1994-04-27	Marks Spencer Plc	Assessment of surface characteristics

1973
- 1973-06-20 CH CH893473A patent/CH563011A5/xx not_active IP Right Cessation
- 1973-06-21 CA CA174,595A patent/CA981899A/en not_active Expired
- 1973-06-21 GB GB2962573A patent/GB1422180A/en not_active Expired
- 1973-06-21 BE BE1005179A patent/BE801207R/en not_active IP Right Cessation
- 1973-07-09 IT IT6904273A patent/IT1046260B/en active
- 1973-07-12 JP JP7797873A patent/JPS49131457A/ja active Pending
- 1973-08-17 DE DE19732341764 patent/DE2341764A1/en active Pending
- 1973-08-27 NL NL7311772A patent/NL7311772A/xx not_active Application Discontinuation
1980
- 1980-02-19 JP JP1861080A patent/JPS55146004A/en active Granted

Also Published As

Publication number	Publication date
GB1422180A (en)	1976-01-21
CH563011A5 (en)	1975-06-13
JPS49131457A (en)	1974-12-17
NL7311772A (en)	1974-10-14
IT1046260B (en)	1980-06-30
JPS5710361B2 (en)	1982-02-26
CA981899A (en)	1976-01-20
DE2341764A1 (en)	1974-10-24
JPS55146004A (en)	1980-11-14

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Legal Events

Date	Code	Title	Description
1985-08-31	RE	Patent lapsed	Owner name: COMPAGNIE GENERALE D' ELECTRICITE Effective date: 19850218

Date

Code

Title

Description

1985-08-31

Patent lapsed

Owner name: COMPAGNIE GENERALE D' ELECTRICITE

Effective date: 19850218